KR102411584B1 - 소결 자석의 제조 방법 및 소결 자석 - Google Patents

소결 자석의 제조 방법 및 소결 자석 Download PDF

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Publication number
KR102411584B1
KR102411584B1 KR1020180125899A KR20180125899A KR102411584B1 KR 102411584 B1 KR102411584 B1 KR 102411584B1 KR 1020180125899 A KR1020180125899 A KR 1020180125899A KR 20180125899 A KR20180125899 A KR 20180125899A KR 102411584 B1 KR102411584 B1 KR 102411584B1
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KR
South Korea
Prior art keywords
fluoride
rare earth
powder
sintered magnet
magnet
Prior art date
Application number
KR1020180125899A
Other languages
English (en)
Korean (ko)
Other versions
KR20200045182A (ko
Inventor
김인규
권순재
최익진
어현수
이정구
Original Assignee
주식회사 엘지화학
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to KR1020180125899A priority Critical patent/KR102411584B1/ko
Priority to PCT/KR2019/013828 priority patent/WO2020085738A1/ko
Priority to CN201980021163.9A priority patent/CN111902898B/zh
Priority to JP2020554132A priority patent/JP7123469B2/ja
Priority to US15/734,080 priority patent/US11978576B2/en
Priority to EP19876705.5A priority patent/EP3754676B1/en
Publication of KR20200045182A publication Critical patent/KR20200045182A/ko
Application granted granted Critical
Publication of KR102411584B1 publication Critical patent/KR102411584B1/ko

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0266—Moulding; Pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • B22F1/102—Metallic powder coated with organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/16—Metallic particles coated with a non-metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0293—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2301/00—Metallic composition of the powder or its coating
    • B22F2301/35—Iron
    • B22F2301/355—Rare Earth - Fe intermetallic alloys

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
KR1020180125899A 2018-10-22 2018-10-22 소결 자석의 제조 방법 및 소결 자석 KR102411584B1 (ko)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020180125899A KR102411584B1 (ko) 2018-10-22 2018-10-22 소결 자석의 제조 방법 및 소결 자석
PCT/KR2019/013828 WO2020085738A1 (ko) 2018-10-22 2019-10-21 소결 자석의 제조 방법 및 소결 자석
CN201980021163.9A CN111902898B (zh) 2018-10-22 2019-10-21 用于制备烧结磁体的方法和烧结磁体
JP2020554132A JP7123469B2 (ja) 2018-10-22 2019-10-21 焼結磁石の製造方法および焼結磁石
US15/734,080 US11978576B2 (en) 2018-10-22 2019-10-21 Method for preparing sintered magnet and sintered magnet
EP19876705.5A EP3754676B1 (en) 2018-10-22 2019-10-21 Method for manufacturing sintered magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020180125899A KR102411584B1 (ko) 2018-10-22 2018-10-22 소결 자석의 제조 방법 및 소결 자석

Publications (2)

Publication Number Publication Date
KR20200045182A KR20200045182A (ko) 2020-05-04
KR102411584B1 true KR102411584B1 (ko) 2022-06-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020180125899A KR102411584B1 (ko) 2018-10-22 2018-10-22 소결 자석의 제조 방법 및 소결 자석

Country Status (6)

Country Link
US (1) US11978576B2 (ja)
EP (1) EP3754676B1 (ja)
JP (1) JP7123469B2 (ja)
KR (1) KR102411584B1 (ja)
CN (1) CN111902898B (ja)
WO (1) WO2020085738A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110536285B (zh) 2018-09-26 2022-09-20 中兴通讯股份有限公司 干扰控制、消息发送、转发方法、装置、通信设备及系统
KR102261143B1 (ko) * 2020-07-02 2021-06-07 성림첨단산업(주) 희토류 영구자석의 제조방법

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* Cited by examiner, † Cited by third party
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JP2012199423A (ja) * 2011-03-22 2012-10-18 Tdk Corp 異方性磁粉の製造方法及び異方性ボンド磁石
WO2013186864A1 (ja) * 2012-06-13 2013-12-19 株式会社 日立製作所 焼結磁石及びその製造方法
JP2017002358A (ja) * 2015-06-10 2017-01-05 セイコーエプソン株式会社 造粒粉末および造粒粉末の製造方法
WO2017191866A1 (ko) * 2016-05-02 2017-11-09 성림첨단산업(주) 희토류 소결 자석의 제조방법

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TWI413136B (zh) 2005-03-23 2013-10-21 Shinetsu Chemical Co 稀土族永久磁體
MY141999A (en) 2005-03-23 2010-08-16 Shinetsu Chemical Co Functionally graded rare earth permanent magnet
JP4525425B2 (ja) 2005-03-31 2010-08-18 株式会社日立製作所 フッ化物コート膜形成処理液，フッ化物コート膜形成方法及び磁石
JP4508175B2 (ja) 2006-09-29 2010-07-21 日立化成工業株式会社 フッ化物コート膜形成処理液およびフッ化物コート膜形成方法
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US20080241513A1 (en) * 2007-03-29 2008-10-02 Matahiro Komuro Rare earth magnet and manufacturing method thereof
JP2010027852A (ja) 2008-07-18 2010-02-04 Daido Steel Co Ltd Ｒ−ｔ−ｂ系希土類磁石の製造方法
JP4591631B2 (ja) 2008-07-30 2010-12-01 日立金属株式会社 耐食性磁石およびその製造方法
JP2010238712A (ja) 2009-03-30 2010-10-21 Tdk Corp 希土類焼結磁石の製造方法
JP4961454B2 (ja) 2009-05-12 2012-06-27 株式会社日立製作所 希土類磁石及びこれを用いたモータ
JP5247754B2 (ja) 2010-03-30 2013-07-24 株式会社日立製作所 磁性材料及びその磁性材料を用いたモータ
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CN106298135B (zh) * 2016-08-31 2018-05-18 烟台正海磁性材料股份有限公司 一种R-Fe-B类烧结磁体的制造方法
KR102012446B1 (ko) * 2016-10-07 2019-08-20 성림첨단산업(주) 고성능 희토류 소결 자석의 제조방법
KR101995536B1 (ko) 2016-10-07 2019-07-03 성림첨단산업(주) 고성능 희토류 자석의 제조방법
KR102100759B1 (ko) 2016-11-08 2020-04-14 주식회사 엘지화학 금속 분말의 제조 방법 및 금속 분말
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JP2012199423A (ja) * 2011-03-22 2012-10-18 Tdk Corp 異方性磁粉の製造方法及び異方性ボンド磁石
WO2013186864A1 (ja) * 2012-06-13 2013-12-19 株式会社 日立製作所 焼結磁石及びその製造方法
JP2017002358A (ja) * 2015-06-10 2017-01-05 セイコーエプソン株式会社 造粒粉末および造粒粉末の製造方法
WO2017191866A1 (ko) * 2016-05-02 2017-11-09 성림첨단산업(주) 희토류 소결 자석의 제조방법

Also Published As

Publication number Publication date
EP3754676B1 (en) 2023-07-12
JP7123469B2 (ja) 2022-08-23
CN111902898A (zh) 2020-11-06
EP3754676A1 (en) 2020-12-23
EP3754676A4 (en) 2021-07-07
WO2020085738A1 (ko) 2020-04-30
US11978576B2 (en) 2024-05-07
KR20200045182A (ko) 2020-05-04
JP2021517365A (ja) 2021-07-15
CN111902898B (zh) 2022-09-16
US20210225587A1 (en) 2021-07-22

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